Home / 12,791,156.40-19,196,684.16-8,927,881.44

Finding the Fourth Proportional to 12,791,156.40, 19,196,684.16 and 8,927,881.44

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Solution

The fourth proportional to 12,791,156.40, 19,196,684.16 and 8,927,881.44 is: 13,398,766.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,791,156.40 : 19,196,684.16 = 8,927,881.44 : x
  2. Step 2: Convert to fraction form
    12,791,156.40/19,196,684.16 = 8,927,881.44/x
  3. Step 3: Cross multiply
    12,791,156.40x = 19,196,684.16 × 8,927,881.44
  4. Step 4: Simplify right side
    12,791,156.40x = 171,385,720,221,605.97
  5. Step 5: Solve for x
    x = 171,385,720,221,605.97/12,791,156.40
  6. Step 6: Final answer
    x = 13,398,766.68

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.